CVE-2021-20708 json
NEC Aterm devices (Aterm WF1200CR firmware Ver1.3.2 and earlier, Aterm WG1200CR firmware Ver1.3.3 and earlier, and Aterm WG2600HS firmware…
published 5y ago modified 4mo ago also EUVD-2021-8123
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
NEC Aterm devices (Aterm WF1200CR firmware Ver1.3.2 and earlier, Aterm WG1200CR firmware Ver1.3.3 and earlier, and Aterm WG2600HS firmware Ver1.5.1 and earlier) allow authenticated attackers to execute arbitrary OS commands by sending a specially crafted request to a specific URL.
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1.22% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Affected products
- NEC Corporation NEC Aterm devices
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
jpn.nec.com
/security-info/secinfo/nv21-010.html
mitigation, vendor-advisory
-
jvn.jp
/en/jp/JVN29739718/index.html
third-party-advisory
Sources
- CVE List CVE-2021-20708
- NVD CVE-2021-20708
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.